EP2891602A1 - Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad - Google Patents

Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad Download PDF

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Publication number
EP2891602A1
EP2891602A1 EP14150060.3A EP14150060A EP2891602A1 EP 2891602 A1 EP2891602 A1 EP 2891602A1 EP 14150060 A EP14150060 A EP 14150060A EP 2891602 A1 EP2891602 A1 EP 2891602A1
Authority
EP
European Patent Office
Prior art keywords
power
shaft
transfer
chainless
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14150060.3A
Other languages
English (en)
French (fr)
Inventor
Jen-Chih Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Kailung Gear Co Ltd
Original Assignee
New Kailung Gear Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Kailung Gear Co Ltd filed Critical New Kailung Gear Co Ltd
Priority to EP14150060.3A priority Critical patent/EP2891602A1/de
Publication of EP2891602A1 publication Critical patent/EP2891602A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/70—Rider propelled cycles with auxiliary electric motor power-driven at single endless flexible member, e.g. chain, between cycle crankshaft and wheel axle, the motor engaging the endless flexible member

Definitions

  • the present invention relates to power structures for chainless bicycles, and in particular to an electromotive auxiliary power assembly for chainless shaft-power-transfer bicycles.
  • a motor assistant bicycle is developed for chain-used bicycles so that the user can select to drive the bicycle by manpower or a motor.
  • this kind of bicycles is mainly used for chain used bicycles.
  • the power from the motor is inputted from the crank shaft of the bicycle. Then the power is transferred to the rear wheel through the chain.
  • the above mentioned prior art is aimed to the chain bicycles, while no structure is aimed at chainless bicycles.
  • the present invention hopes to develop an electromotive auxiliary power assembly for a chainless shaft-power-transfer bicycle, which can improve the defects in the prior art.
  • the present invention provides a electromotive auxiliary power assembly for a chainless shaft-power-transfer bicycle, wherein the present invention actually provides auxiliary power to the chainless bicycles.
  • Auxiliary power of the motor of a chainless bicycle is directly transferred to the power transfer shaft through a gear set instead of by the crank assembly or a wheel hub etc.).
  • the power from the motor set directly applies to the power transfer shaft to reduce the power lose in transfer so as to achieve the object of power saving. Therefore, the present invention is highly usable with less components and only small space is needed and thus the cost is low.
  • the present invention provides an electromotive auxiliary power assembly for a chainless shaft-power-transfer bicycle comprising: a frame, a crank assembly, a crank, a power transfer shaft between the crank assembly and the passive gear of the rear wheel hub, and a motor set for providing auxiliary power; the auxiliary power of the motor set being directly transferred to the power transfer shaft through a gear set instead of by other components of the chainless bicycle.
  • the motor set is installed on the power transfer shaft between the crank assembly and the passive gear set of the rear wheel hub. Even the motor set is installed on the power transfer shaft extending from a crank shaft of the crank assembly.
  • the power output shaft of the motor set is coaxial or non-coaxial with, parallel or non-parallel with , or penetrates through or non-penetrates through the power transfer shaft.
  • the electromotive power auxiliary device according to the present invention is illustrated.
  • the auxiliary power of the motor of a chainless bicycle is directly transferred to the power transfer shaft through a gear set instead of by the crank assembly or a wheel hub etc. )
  • a chainless power transfer bicycle includes a frame 1, a crank assembly 2, a crank 21, and a power transfer shaft 3 between the crank assembly 2 and the passive gear set 4 of the rear wheel hub.
  • the auxiliary power transfer assembly of the present invention includes a motor set 5 (including a motor having a gear set (may be neglected) and other means), a motor power output shaft 51 and a power transfer shaft 3 installed between the crank assembly 2 and the passive gear set 4 of the rear wheel hub.
  • the motor set 5 is installed on the power transfer shaft 3. There are two positions suitable for installing the motor set.
  • the motor set 5 is installed on the power transfer shaft 3 between the crank assembly 2 and the passive gear set 4 of the rear wheel hub as illustrated in Fig. 2 .
  • the motor set 5 is installed on a section of the power transfer set 3 extending out of the crank set 20 of the crank assembly 2.
  • the power output shaft 5 of the motor set 5 may be coaxial or non-coaxial with the power transfer shaft 3.
  • it may be a form of penetration (referring to Fig. 4 ) or non-penetration (referring to Fig. 5 ).
  • it may be a form of penetration (referring to Fig. 6 and non-penetration (referring to Fig. 7 ).
  • the power output shaft 51 of the motor set 5 is a penetrated coaxial form.
  • the power transfer shaft 3 penetrates through the power output shaft 51 of the motor set 5.
  • the power transfer shaft 3 may be integrally formed with the power output shaft 51 of the motor set 5 or is assembled to the power output shaft 51 of the motor set 5 by studs.
  • the power output shaft 51 of the motor set 5 is coaxial with the power transfer shaft 3, but do not penetrate through the power transfer shaft 3.
  • the power output shaft 51 of the motor set 5 is engaged to the power transfer shaft 3 through studs, keys or pins.
  • Fig. 6 it is illustrated that the power output shaft 51 of the motor set 5 is parallel to the power transfer shaft 3 and thus the power output shaft 51 does not penetrate through the power transfer shaft 3.
  • the power output shaft 51 of the motor set 5 is engaged to the power transfer shaft 3 through gear set 6 (such as a round post like gear set or other kinds of gear sets.)
  • Fig. 7 it is illustrated that the power output shaft 51 of the motor set 5 is not parallel to the power transfer shaft 3 and do not penetrate through the power transfer shaft 3.
  • a worm stud 7 or a worm gear set 71 (or a helical gear set, an umbrella gear set, or a plane gear set) is used to assemble the power output shaft 51 to the power transfer shaft 3.
  • a one way bearing 72 is installed between the power transfer shaft 3 and the worm gear set 71. By the one way bearing 72, the torque outputted from the crank assembly 2 will not feedback to the motor set 5 itself to increase the manpower for driving the bicycle.
  • the present invention actually provides auxiliary power to the chainless bicycles.
  • Auxiliary power of the motor of a chainless bicycle is directly transferred to the power transfer shaft through a gear set instead of by the crank assembly or a wheel hub etc.).
  • the power from the motor set directly applies to the power transfer shaft to reduce the power lose in transfer so as to achieve the object of power saving. Therefore, the present invention is highly usable with less components and only small space is needed and thus the cost is low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP14150060.3A 2014-01-02 2014-01-02 Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad Withdrawn EP2891602A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14150060.3A EP2891602A1 (de) 2014-01-02 2014-01-02 Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14150060.3A EP2891602A1 (de) 2014-01-02 2014-01-02 Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad

Publications (1)

Publication Number Publication Date
EP2891602A1 true EP2891602A1 (de) 2015-07-08

Family

ID=49917567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14150060.3A Withdrawn EP2891602A1 (de) 2014-01-02 2014-01-02 Elektromotorischer Hilfsantriebsvorrichtung für kettenloses Triebwellenfahrrad

Country Status (1)

Country Link
EP (1) EP2891602A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04100790A (ja) * 1990-08-16 1992-04-02 Yamaha Motor Co Ltd 電動モータ付き人力駆動装置
DE19732271A1 (de) * 1997-07-26 2000-05-25 Dietrich Gerhard Ellsaesser Fahrradantriebsaggregat mit zwei oder mehr Antriebsquellen in winkelversetzter Anordnung
DE202004014189U1 (de) * 2003-09-19 2004-11-11 Gruber, Reinhold Fahrrad mit einem Hilfsantrieb
DE102009046866A1 (de) * 2009-11-19 2011-05-26 Robert Bosch Gmbh Fahrrad

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04100790A (ja) * 1990-08-16 1992-04-02 Yamaha Motor Co Ltd 電動モータ付き人力駆動装置
DE19732271A1 (de) * 1997-07-26 2000-05-25 Dietrich Gerhard Ellsaesser Fahrradantriebsaggregat mit zwei oder mehr Antriebsquellen in winkelversetzter Anordnung
DE202004014189U1 (de) * 2003-09-19 2004-11-11 Gruber, Reinhold Fahrrad mit einem Hilfsantrieb
DE102009046866A1 (de) * 2009-11-19 2011-05-26 Robert Bosch Gmbh Fahrrad

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